declare to gypi where SkDeviceProperties.h moved to

NOTRY=True
NOTREECHECKS=True
TBR=

Author: reed@google.com

Review URL: https://codereview.chromium.org/574383002
diff --git a/gyp/core.gypi b/gyp/core.gypi
index 09a3740..a2fd438 100644
--- a/gyp/core.gypi
+++ b/gyp/core.gypi
@@ -67,6 +67,7 @@
         '<(skia_src_path)/core/SkDevice.cpp',
         '<(skia_src_path)/core/SkDeviceLooper.cpp',
         '<(skia_src_path)/core/SkDeviceProfile.cpp',
+        '<(skia_src_path)/core/SkDeviceProperties.h',
         '<(skia_src_path)/lazy/SkDiscardableMemoryPool.cpp',
         '<(skia_src_path)/lazy/SkDiscardablePixelRef.cpp',
         '<(skia_src_path)/core/SkDistanceFieldGen.cpp',
@@ -244,7 +245,6 @@
         '<(skia_include_path)/core/SkData.h',
         '<(skia_include_path)/core/SkDeque.h',
         '<(skia_include_path)/core/SkDevice.h',
-        '<(skia_include_path)/core/SkDeviceProperties.h',
         '<(skia_include_path)/core/SkDither.h',
         '<(skia_include_path)/core/SkDraw.h',
         '<(skia_include_path)/core/SkDrawFilter.h',